The '''Library of Congress''' ("LOC") is the research library
that officially serves the United States Congress
and is the ''de facto'' national library
of the United States
. It is the oldest federal cultural institution in the United States. The Library is housed in three buildings on Capitol Hill
in Washington, D.C.
; it also maintains the National Audio-Visual Conservation Center|Packard Campus
in Culpeper, Virginia
, which houses the National Audio-Visual Conservation Center
The Library of Congress claims to be the largest library in the world.
Its "collections are universal, not limited by subject, format, or national boundary, and include research materials from all parts of the world and in more than 450 languages. Two-thirds of the books it acquires each year are in languages other than English."
The Library of Congress moved to...